7.1 - Site investigation

Question 1

Desk site investigation

Answer 1

Existing data, maps, literature

Question 2

Field site investigation

Answer 2

Drilling, excavating, mapping, coring

Question 3

Lab site investigation

Answer 3

Testing, experiments

Question 4

Inclinometer

Answer 4

Monitors movements and can trigger an alarm when it detects a change, rate of change, that exceeds a preset value.

Question 5

Risk and consequence

Answer 5

It may be expensive to adopt an excessive factor of safety, and can be dangerous to proceed assuming average conditions
Risk = probability of adverse event occurring x consequence